kedro.framework.hooks.specs.PipelineSpecs

class kedro.framework.hooks.specs.PipelineSpecs

Namespace that defines all specifications for a pipeline’s lifecycle hooks.

Methods

after_pipeline_run(run_params, run_result, …)	Hook to be invoked after a pipeline runs.
before_pipeline_run(run_params, pipeline, …)	Hook to be invoked before a pipeline runs.
on_pipeline_error(error, run_params, …)	Hook to be invoked if a pipeline run throws an uncaught Exception.

after_pipeline_run(run_params, run_result, pipeline, catalog)

Hook to be invoked after a pipeline runs.

Parameters

• run_params (Dict[str, Any]) –

  The params used to run the pipeline. Should have the following schema:

  {
    "session_id": str
    "project_path": str,
    "env": str,
    "kedro_version": str,
    "tags": Optional[List[str]],
    "from_nodes": Optional[List[str]],
    "to_nodes": Optional[List[str]],
    "node_names": Optional[List[str]],
    "from_inputs": Optional[List[str]],
    "to_outputs": Optional[List[str]],
    "load_versions": Optional[List[str]],
    "pipeline_name": str,
    "extra_params": Optional[Dict[str, Any]]
  }
  

• run_result (Dict[str, Any]) – The output of Pipeline run.

• pipeline (Pipeline) – The Pipeline that was run.

• catalog (DataCatalog) – The DataCatalog used during the run.

Return type

None

before_pipeline_run(run_params, pipeline, catalog)

Hook to be invoked before a pipeline runs.

Parameters

• run_params (Dict[str, Any]) –

  The params used to run the pipeline. Should have the following schema:

  {
    "session_id": str
    "project_path": str,
    "env": str,
    "kedro_version": str,
    "tags": Optional[List[str]],
    "from_nodes": Optional[List[str]],
    "to_nodes": Optional[List[str]],
    "node_names": Optional[List[str]],
    "from_inputs": Optional[List[str]],
    "to_outputs": Optional[List[str]],
    "load_versions": Optional[List[str]],
    "pipeline_name": str,
    "extra_params": Optional[Dict[str, Any]]
  }
  

• pipeline (Pipeline) – The Pipeline that will be run.

• catalog (DataCatalog) – The DataCatalog to be used during the run.

Return type

None

on_pipeline_error(error, run_params, pipeline, catalog)

Hook to be invoked if a pipeline run throws an uncaught Exception. The signature of this error hook should match the signature of before_pipeline_run along with the error that was raised.

Parameters

• error (Exception) – The uncaught exception thrown during the pipeline run.

• run_params (Dict[str, Any]) –

  The params used to run the pipeline. Should have the following schema:

  {
    "session_id": str
    "project_path": str,
    "env": str,
    "kedro_version": str,
    "tags": Optional[List[str]],
    "from_nodes": Optional[List[str]],
    "to_nodes": Optional[List[str]],
    "node_names": Optional[List[str]],
    "from_inputs": Optional[List[str]],
    "to_outputs": Optional[List[str]],
    "load_versions": Optional[List[str]],
    "pipeline_name": str,
    "extra_params": Optional[Dict[str, Any]]
  }
  

• pipeline (Pipeline) – The Pipeline that will was run.

• catalog (DataCatalog) – The DataCatalog used during the run.